So do I send it to my BNB wallet on Binance under BSC?
You do need BNB BSC to be able to send your USDT (BSC). It needs a very small fee and you shall not worry about that.
I was given some Binance-Peg BSC-USD to my Coinbase Wallet. In the description it says its Tether (USDT), and I am confused how to send it to my Binance wallet.
Is it an ERC20 coin? A BSC coin? Do I send it as USDT, or BSC?
It's not ERC20 since it was based on the binance smart chain. It's BEP20 asset. Fill your wallet with fees and you will able to sell your USDT BSC. It's USDT but based on the BSC network.
Binance has two blockchains native and BSC. your asset was based on the BSC.
It says its on the BSC Blockchain in the app, but it also says its USDT. I am all kinds of confused and not sure what to do from here.
Also I do have BNB in order to pay the gas fee that it says is required.
USDT was also based on BSC. I thought that you meant about this
https://bscscan.com/token/0x55d398326f99059ff775485246999027b3197955You can verify your USDT whether that was legit or not based on the smartcontract. You need to fill your wallet with $1 worth of BNB BSC.